Showing posts with label Expressions. Show all posts
Showing posts with label Expressions. Show all posts

Monday, August 4, 2014

C Programming

1. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int x=55;
    printf("%d, %d, %d\n", x<=55, x=40, x>=10);
    return 0;
}
A.1, 40, 1B.1, 55, 1
C.1, 55, 0D.1, 1, 1

2. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=2;
    printf("%d, %d\n", ++i, ++i);
    return 0;
}
A.3, 4
B.4, 3
C.4, 4
D.Output may vary from compiler to compiler
3. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int k, num=30;
    k = (num>5 ? (num <=10 ? 100 : 200): 500);
    printf("%d\n", num);
    return 0;
}
A.200B.30
C.100D.500
4. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    char ch;
    ch = 'A';
    printf("The letter is");
    printf("%c", ch >= 'A' && ch <= 'Z' ? ch + 'a' - 'A':ch);
    printf("Now the letter is");
    printf("%c\n", ch >= 'A' && ch <= 'Z' ? ch : ch + 'a' - 'A');
    return 0;
}
A.The letter is a
Now the letter is A
B.The letter is A
Now the letter is a
C.ErrorD.None of above
5. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=2;
    int j = i + (1, 2, 3, 4, 5);
    printf("%d\n", j);
    return 0;
}
A.4B.7
C.6D.5

Sunday, August 3, 2014

C Programming

1. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=4, j=-1, k=0, w, x, y, z;
    w = i || j || k;
    x = i && j && k;
    y = i || j &&k;
    z = i && j || k;
    printf("%d, %d, %d, %d\n", w, x, y, z);
    return 0;
}
A.1, 1, 1, 1B.1, 1, 0, 1
C.1, 0, 0, 1D.1, 0, 1, 1

2. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=-3, j=2, k=0, m;
    m = ++i && ++j || ++k;
    printf("%d, %d, %d, %d\n", i, j, k, m);
    return 0;
}
A.1, 2, 0, 1B.-3, 2, 0, 1
C.-2, 3, 0, 1D.2, 3, 1, 1
3. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int x=4, y, z;
    y = --x;
    z = x--;
    printf("%d, %d, %d\n", x, y, z);
    return 0;
}
A.4, 3, 3B.4, 3, 2
C.3, 3, 2D.2, 3, 3

4. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=3;
    i = i++;
    printf("%d\n", i);
    return 0;
}
A.3B.4
C.5D.6
5. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int a=100, b=200, c;
    c = (a == 100 || b > 200);
    printf("c=%d\n", c);
    return 0;
}
A.c=100B.c=200
C.c=1D.c=300

Saturday, August 2, 2014

C Programming

1. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=-3, j=2, k=0, m;
    m = ++i && ++j && ++k;
    printf("%d, %d, %d, %d\n", i, j, k, m);
    return 0;
}
A.-2, 3, 1, 1B.2, 3, 1, 2
C.1, 2, 3, 1D.3, 3, 1, 2
2. 
Assunming, integer is 2 byte, What will be the output of the program?
#include<stdio.h>

int main()
{
    printf("%x\n", -2<<2);
    return 0;
}
A.ffffB.0  
C.fff8D.Error

3. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int i=-3, j=2, k=0, m;
    m = ++i || ++j && ++k;
    printf("%d, %d, %d, %d\n", i, j, k, m);
    return 0;
}
A.2, 2, 0, 1B.1, 2, 1, 0
C.-2, 2, 0, 0D.-2, 2, 0, 1
4. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    int x=12, y=7, z;
    z = x!=4 || y == 2;
    printf("z=%d\n", z);
    return 0;
}
A.z=0B.z=1
C.z=4D.z=2
5. 
What will be the output of the program?
#include<stdio.h>
int main()
{
    static int a[20];
    int i = 0;
    a[i] = i  ;
    printf("%d, %d, %d\n", a[0], a[1], i);
    return 0;
}
A.1, 0, 1B.1, 1, 1
C.0, 0, 0D.0, 1, 0

Friday, August 1, 2014

C Programming

1. 
Which of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1
A.* / % + - =B.= * / % + -
C./ * % - + =D.* % / - + =

2. 
Which of the following correctly shows the hierarchy of arithmetic operations in C?
A./ + * -B.* - / +
C.+ - / *D./ * + -
3. 
Which of the following is the correct usage of conditional operators used in C?
A.a>b ? c=30 : c=40;B.a>b ? c=30;
C.max = a>b ? a>c?a:c:b>c?b:cD.return (a>b)?(a:b)
4. 
Which of the following is the correct order if calling functions in the below code?
a = f1(23, 14) * f2(12/4) + f3();
A.f1, f2, f3
B.f3, f2, f1
C.Order may vary from compiler to compiler
D.None of above
5. 
Which of the following are unary operators in C?
1.!
2.sizeof
3.~
4.&&
A.1, 2B.1, 3
C.2, 4D.1, 2, 3